Commit b6a2e1be authored by Bard Liao's avatar Bard Liao Committed by Vinod Koul
Browse files

soundwire: add lane_used_bandwidth in struct sdw_bus 



To support multi-lane, we need to know how much bandwidth
is used on each lane. And to use the lane that has enough
bandwidth.

Signed-off-by: default avatarBard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: default avatarPéter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: default avatarPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20241218080155.102405-4-yung-chuan.liao@linux.intel.com


Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent 7533d0df

include/linux/soundwire/sdw.h

+2 −0
Original line number Diff line number Diff line
@@ -893,6 +893,7 @@ struct sdw_master_ops { 
 * @multi_link: Store bus property that indicates if multi links

 * are supported. This flag is populated by drivers after reading

 * appropriate firmware (ACPI/DT).

 * @lane_used_bandwidth: how much bandwidth in bits per second is used by each lane

 */

struct sdw_bus {

	struct device *dev;
@@ -924,6 +925,7 @@ struct sdw_bus { 
	struct dentry *debugfs;

#endif

	bool multi_link;

	unsigned int lane_used_bandwidth[SDW_MAX_LANES];

};



int sdw_bus_master_add(struct sdw_bus *bus, struct device *parent,